CVE-2026-1315

Unauthenticated Denial of Service via Firmware Update Endpoint on TP-Link Tapo C220 & C520WS

Published Jan 27, 2026 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Description
By sending crafted files to the firmware update endpoint of Tapo C220 v1 and C520WS v2, the device terminates core system services before verifying authentication or firmware integrity. An unauthenticated attacker can trigger a persistent denial of service, requiring a manual reboot or application initiated restart to restore normal device operation.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Tp-link tapo C220
Tp-link tapo C220 Firmware
Tp-link tapo C520ws
Tp-link tapo C520ws Firmware
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:h:tp-link:tapo_c220:1:*:*:*:*:*:*:*
cpe:2.3:h:tp-link:tapo_c520ws:2:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tapo_c220_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tapo_c520ws_firmware:*:*:*:*:*:*:*:*
Vendors & Products Tp-link tapo C220
Tp-link tapo C220 Firmware
Tp-link tapo C520ws
Tp-link tapo C520ws Firmware
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
First Time appeared Tp-link
Tp-link tapo
Tp-link tapo C220 V1
Tp-link tapo C520ws V2
Vendors & Products Tp-link
Tp-link tapo
Tp-link tapo C220 V1
Tp-link tapo C520ws V2
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description By sending crafted files to the firmware update endpoint of Tapo C220 v1 and C520WS v2, the device terminates core system services before verifying authentication or firmware integrity. An unauthenticated attacker can trigger a persistent denial of service, requiring a manual reboot or application initiated restart to restore normal device operation.
Title Unauthenticated Denial of Service via Firmware Update Endpoint on TP-Link Tapo C220 & C520WS
Weaknesses CWE-20
References
Metrics cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TPLink
Published
Updated
Jan 27, 2026, 6:11 PM
Reserved
Jan 21, 2026, 11:01 PM
Status
Analyzed
Published
Jan 27, 2026, 6:15 PM
Modified
Jun 17, 2026, 10:15 AM